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【结 构 式】

【分子编号】19474

【品名】tert-butyl (E)-3-(2-formylphenyl)-2-propenoate

【CA登记号】

【 分 子 式 】C14H16O3

【 分 子 量 】232.27924

【元素组成】C 72.39% H 6.94% O 20.66%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(III)

The Wittig condensation of o-phthalaldehyde (I) with tert-butyl triphenylphosphoranylideneacetate (II) in methylene chloride gives tert-butyl 3-(2-formylphenyl)-2(E)-propenoate (III), which is then cyclized with ethyl 3-aminocrotonate (IV) in acetic acid.

1 Borthwick, A.D.; Pierccioli, D.; Micheli, D.; Semeraro, C.; Gaviraghi, G. (Glaxo SpA); 1,4-dihydropyridines.. ES 8703839; ES 8703839; US 4801599; US 5011848 .
2 Prous, J.; Castaner, J.; LACIDIPINE < Rec INN; BAN; USAN >. Drugs Fut 1989, 14, 4, 317.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 19472 o-phthalaldehyde; o-phthaldialdehyde; phthalaldehyde 643-79-8 C8H6O2 详情 详情
(II) 11335 tert-butyl 2-(triphenyl-lambda(5)-phosphanylidene)acetate; (tert-Butoxycarbonylmethylene)triphenylphosphorane 35000-38-5 C24H25O2P 详情 详情
(III) 19474 tert-butyl (E)-3-(2-formylphenyl)-2-propenoate C14H16O3 详情 详情
(IV) 11975 Ethyl (E)-3-amino-2-butenoate 7318-00-5 C6H11NO2 详情 详情
Extended Information